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PU dispersion adhesive for membrane press application.
Top quality performance with proven reliability.

Presstick 346 is an outstanding membrane press adhesive, specially developed to deliver superior performance in all membrane press applications. For over 15 years its formulation has proven its value by delivering excellent and reliable field results. Presstick 346 is applied either by spray or roller onto MDF curved boards or profiles, in the production of furniture fronts and indoor doors. It is heat activated. Its unique composition ensures a very strong and secure bonding between PVC foils and wood surfaces.

Product Specifications
Solids content 42% (± 1)
Specific gravity (kg/liter) 1.05 (± 0.01)

Viscosity at 23º C (Brookfield RVT 20, spindle 2)

800 ( ± 100) cps
Acidity (pH) 6-7
Spread ratio (quantity/area) 100-160 gm over 1 sq.m
Minimum film forming temperature 7º C
Minimum Activation Temperature 70º-80º C
Color White
Shelf life 6 months
Storage conditions
8 months if stored at 23º C in original
and sealed containers.
Avoid storing above 30º C.
The adhesive is sensitive to freezing –
forbidden to store it below -5º C
Packaging

18 kg bucket, 120 kg drum

1,000 kg IBC

Applications

For bonding soft PVC foils to varied MDF surfaces using a membrane press. Presstick 346 is usually sprayed onto the wooden (MDF) panel. When the surface is very porous the membrane press adhesive is sprayed twice in the edges and routed areas. The coat weight differs in these areas accordingly. The panels are placed into the membrane press after a minimum of 60 minutes drying time (the ´complete drying´ period). Heat and pressure then re-activates the adhesive, causing the PVC foil to be fully laminated onto the panel. To ensure highest heat resistance it is recommended that Presstick 346 be mixed with approx 3% of our PU Hardener just before spraying.

See our special information page about Presstick PU dispersion adhesive for membrane press applications

See special article: The special ingredient: why quality matters in membrane press adhesives.

Download Our Safety Data Sheet (MSDS)

Note: The above information is based on Polystick´s best knowledge as a membrane press adhesive specialist and is intended to provide general data only concerning its products and usage. Consequently the company is not liable as a guarantor regarding a product´s specific features or its suitability for particular applications. It is recommended that all work be preceded by tests in the work environment and with the intended materials to achieve optimal implementation.

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